David m



@atten gisten datent Letters Patent No. 68,435, lated September 3, 1867.

IMPROVBD GAS APPARATUS.

dige Stimuli nfcnfrt tu in tlgcsr tettas lntrnt mit mating pitt nf its stmt T0 ALL WHOM IT MAY CONCERN:

Beit known that I, DAVID M. GRAHAM, of Evansville,'in tht county of Vanderburg, and Sta-tc of Indiana, have invented a new and 'useful Improvement in Gas Apparatus; and I do hereby declare that thc following is a full, clear, and exact description of the construction and operation of the same, reference being had to thev accompanying drawings, making a part of this specification, in which the figure in the drawings is a side eleva-tion.

The nature of my invention consists in the construction of a portable family gas -apparatus, whereby the Vgas generated from petroleum or other oil for illumination or for other purposes is refined and deodorized by means of three cylindrical vessels provided with suitable chambers containing water, and water impregnated with lime, as may be desired, forming a trio-hydrostatic gas-generator; the chambers and pipes being so arranged in the vessels, and the gas conveyed in such a manner through them as to obviate the necessity of using a large quantity of-water, and consequent loss of gas from the expulsonof air from the same, in case where the single vessel or standis used and full of water. i

To enable any one skilled in the art to make and use my invention, I will proceed to describe its construction and operation. y

In the drawings, the red lines aarepresent plates,l dividing the cylinders into chambers, the upper of which is intended for holding water. b is apipe attached to plate open at the top and at the bottom through theplate. c is 4an inner cylinder leaving-a space or chamber., c, for holding water. d acontinuation of pipe Abetweenithe cylinders. e a pipe, communicating with lower maia pipennder cylinders. A represents the tank containing petroleum or other oil from which gas may bc made." The oil is admitted tothe generating-chamber `B by turning the key C. 'The oil as it is deposited on the bottom of the generator is converted into gas by the application of heat under the generator'. The pipe through which'thc oil passes from the tank is carried to .near the bottom of the generator,as will be seen in dotted lines, so that' the gas as it ascends will bc prevented from entering the pipe and thus into the tank, but will enter thel pipe D and "be conveyed to thc chamber'E containing water impregnated with lime, it' desired, where itisldeodorized and separated from any vapor or heavy o il, which vapor or loil will rest upon thc surface of the water, and as the Water willi boeven with the top of the pipe bin the chamber, the vapor or oil will be carried otflthe' surface of the water through the pipe and be deposited in -t-he chamber F below, where it. may bo drawn oif by the cock G', after which it may be returned to the tank A and passed 'through a second time, or as often-as may be desired, until the gas is all extracted therefrom. It then 'may be used for lubricating or for other purposes. After the gas leaves the deodorizing bath or chamber E it passes through a pipe, d, down tothe bottom thereof and upinto ,the inner cylinder c', wherp it is discharged into the chamber H containing water which-gives it the final cleansing. Rising from the water it enters the gasa-meter I and raises-ituntil full, when it is heldin check by the cordagefattached to the upper part of the outer cylinder and to the same of the gasometer, leaving about three inches of the lower part of gasometcr iu the water space c between inner and outer cylinder. This space is lledwith water, `and forms a water-joint to prevent the escapegof gas from gasometer, and consequently explosion. There is a small tube, g, connecting the chamber H with the water-joint, so that by opening the cock h the water may be drawn oif from both places.

Y To regulate the lpressure of the gas upon the gasometer a cord, J, is attachedat one end to the centre of the crown thereof, and connecting with cordage'f attached to cylinder, and passed over pulleys z'z'lattached to the ceiling of a house in which apparatus may be used, and the other end aiiixed to a wcight,j, care being taken to give alittle preponderance to the gasometer over the weight, which will be elevated. or depressed in proportion to the pressure of gas upon it. The gasometer thus counterbalancing theweight will press thc gas down through the pipe e, from whence it passesinto the main pipe L under the cylinders, and thence into a distributing pipe which will connect at the end of main pipe and be distributed into the diierent rooms ofthe house for use. The generator is heated by the burner M connecting with-main pipe L. It not only supplies the gas for illuminating purposes, but suppliesthe burner at the same time for heating the generator. There will always be a suihcient quantity of gasin the apparatus after it has been'once started to supply the burner thereafter, when the flame has been extinguished and it is desired to' renew it again for thc generation of more gus. This principle will. be found to be more fnllyset forth iniLetters" Patent granted me May 9, 1865, and when taken in connection with the refining and deodorizing-chambers, whereby an improvement is madein the gas from petroleum as well as producing oils that may be used for other thaa illuminating purposes, and the apparat-ns; being light, portable, and simple in all its parts will be quite a dcsideratum for family purposes generally' W'hen the gas vhas reached the last chamber H it will be prevented from receding to the first chamber Eby closingthe cocks G and N.

The apparatus is so constructed that it may be *separated 4and transported to any desired place and yet, retain the gas. It will be observed that by opening the cock G air will be admitted to the chamber F, and the oxygen from it passing through the pipe b into the chamber E, above, will be incorporated with the carbon froinf the gas er oil, and the hydrogen from the water, which will improve the quality as well as the quantity of gas. The cock G is for the purpose ol:` drawing oli' thc water from the chamber.

Having thus fully described my invention, what I claim therein as new, and desire to secure by Letters Patent, is

1. The construction of a portable gas apparatus with refining. and (leodorizing-chambers, substantially in the manner and for the purpose as .herein set forth. p

l2. The introduction of air into the deodorizing-chamber E by means of the stop-cock G', substantially in the manner and for the purpose as herein set forth.

.3. The combination of the tank A, generator B, and burner M, with the refining and deodorizing-chambers, substantially in the manner and for the purpose as herein set forth. i

4. The arrangement of the tank A, generator B, chambers E and F, stop-cocks Gr and G', pipe'b, pipe d, inner cylinder c, chamber H, 4pipe e, gasomcter I, main pipe L, and burner M, substantially in the manner and for the purpose as herein described.

D. M. GRAHAM.

vWitnesses:

G. C.' SPEYERER, J. A. SHoLEs. 

